EP 4329296 A3 20240529 - SYSTEM AND METHODS FOR EXTRINSIC CALIBRATION OF CAMERAS AND DIFFRACTIVE OPTICAL ELEMENTS
Title (en)
SYSTEM AND METHODS FOR EXTRINSIC CALIBRATION OF CAMERAS AND DIFFRACTIVE OPTICAL ELEMENTS
Title (de)
SYSTEM UND VERFAHREN ZUR EXTRINSISCHEN KALIBRIERUNG VON KAMERAS UND DIFFRAKTIVEN OPTISCHEN ELEMENTEN
Title (fr)
SYSTÈME ET PROCÉDÉS D'ÉTALONNAGE EXTRINSÈQUE D'APPAREILS PHOTO ET D'ÉLÉMENTS OPTIQUES DIFFRACTIFS
Publication
Application
Priority
- US 201762586691 P 20171115
- US 201762588239 P 20171117
- EP 18877713 A 20181113
- US 2018060833 W 20181113
Abstract (en)
Determining extrinsic parameters of a plurality of cameras using a plurality of diffractive optical elements, comprising: providing (S902) a plurality of diffractive optical elements (502, 504); providing (S904) a plurality of cameras (402, 404) positioned in an eye box of each one of the plurality of diffractive optical elements; receiving (S906) a plurality of images from the plurality of cameras, wherein a single image is received from each one of the plurality of cameras at a given position with respect to one of the plurality of diffractive optical elements; for each image, identifying (S908) data pairs, each data pair including pixel coordinates of an intensity peak in the image and virtual light source produced by the diffractive optical element that corresponds to the intensity peak; and determining (S910) extrinsic parameters of the plurality of cameras using the identified data pairs and a predetermined transform matrix of the plurality of diffractive optical elements.
IPC 8 full level
G06T 7/80 (2017.01); H04N 13/246 (2018.01); H04N 17/00 (2006.01)
CPC (source: EP IL KR US)
G06T 7/70 (2017.01 - IL KR); G06T 7/80 (2017.01 - EP IL KR US); H04N 13/239 (2018.05 - IL KR); H04N 13/246 (2018.05 - EP IL KR); H04N 17/002 (2013.01 - EP IL KR US); H04N 23/90 (2023.01 - IL KR US); H04N 23/951 (2023.01 - IL); G06T 7/70 (2017.01 - US); G06T 2207/30244 (2013.01 - IL KR US); H04N 13/239 (2018.05 - EP)
Citation (search report)
- [A] DE 102010005358 A1 20110728 - DEUTSCH ZENTR LUFT & RAUMFAHRT [DE]
- [A] M BAUER ET AL: "Geometrical camera calibration with diffractive optical elements", OPTICS EXPRESS, vol. 16, no. 25, 8 December 2008 (2008-12-08), pages 20241 - 20248, XP055754459, DOI: https://doi.org/10.1364/OE.16.020241
- [A] DENIS GRIESSBACH ET AL: "GEOMETRIC STEREO CAMERA CALIBRATION WITH DIFFRACTIVE OPTICAL ELEMENTS", 2010, XP055754536, Retrieved from the Internet <URL:https://www.isprs.org/proceedings/XXXVIII/Eurocow2010/euroCOW2010_files/papers/12.pdf> [retrieved on 20201126]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 10867407 B2 20201215; US 2019147625 A1 20190516; AU 2018369622 A1 20200514; CA 3078897 A1 20190523; CN 111373748 A 20200703; EP 3711290 A1 20200923; EP 3711290 A4 20210106; EP 3711290 B1 20240117; EP 4329296 A2 20240228; EP 4329296 A3 20240529; IL 274443 A 20200630; IL 274443 B1 20240301; JP 2021503133 A 20210204; JP 7011711 B2 20220127; KR 102451601 B1 20221006; KR 20200088357 A 20200722; US 11455746 B2 20220927; US 2021142517 A1 20210513; WO 2019099408 A1 20190523
DOCDB simple family (application)
US 201816189943 A 20181113; AU 2018369622 A 20181113; CA 3078897 A 20181113; CN 201880071985 A 20181113; EP 18877713 A 20181113; EP 24151360 A 20181113; IL 27444320 A 20200504; JP 2020526393 A 20181113; KR 20207015632 A 20181113; US 2018060833 W 20181113; US 202017099311 A 20201116